← Search
Sample UE7F-1945
NavDat sample number 84399 · PYROCLASTIC-FALL
Sample
| Sample ID | UE7F-1945 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Sample, described from thin section butt, is very pale reddish brown zeolitic poorly sorted nonwelded tuff with common to abundant white pumice to 12 mm, with yellowish gray interiors. Bronzy biotite is scarce. Common lithics are purplish gray and light brown devitrified flow banded lava with scarce pseudomorphic feldspar phenocrysts. |
|---|
Location
| Latitude | 37.0887 |
|---|
| Longitude | -116.049 |
|---|
| State / province | NEVADA |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 14.27 |
|
14.28 |
14.26 |
|
|
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| BAO | 996.012 | | PPM | XRF |
| BA | 892.1 | | PPM | XRF |
| CE2O3 | 197.593 | | PPM | XRF |
| FE2O3 | 1.73 | | WT% | XRF |
| LA2O3 | 115.529 | | PPM | XRF |
| NB2O5 | 65.4897 | | PPM | XRF |
| ND2O3 | 78.9036 | | PPM | XRF |
| RB2O | 171.038 | | PPM | XRF |
| SRO | 268.566 | | PPM | XRF |
| Y2O3 | 62.8986 | | PPM | XRF |
| ZNO | 120.85 | | PPM | XRF |
| ZN | 97.09 | | PPM | XRF |
| ZRO2 | 448.871 | | PPM | XRF |
| ZR | 332.3 | | PPM | XRF |
